diff --git a/SOURCES/0091-multipath-tools-update-mpp-force_readonly-in-ev_add_.patch b/SOURCES/0091-multipath-tools-update-mpp-force_readonly-in-ev_add_.patch new file mode 100644 index 0000000..c432bbc --- /dev/null +++ b/SOURCES/0091-multipath-tools-update-mpp-force_readonly-in-ev_add_.patch @@ -0,0 +1,78 @@ +From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 +From: Uday Shankar +Date: Wed, 9 Mar 2022 13:03:26 -0700 +Subject: [PATCH] multipath-tools: update mpp->force_readonly in ev_add_path + +When NVMe disks are added to the system, no uevent containing the +DISK_RO property is generated. As a result, dm-* nodes backed by +readonly NVMe disks will not have their RO state set properly. The +result looks like this: + +$ multipath -l +eui.00c92c091fd6564424a9376600011bd1 dm-3 NVME,Pure Storage FlashArray +size=1.0T features='0' hwhandler='0' wp=rw +|-+- policy='service-time 0' prio=0 status=active +| `- 0:2:2:72657 nvme0n2 259:4 active undef running +`-+- policy='service-time 0' prio=0 status=enabled + `- 1:0:2:72657 nvme1n2 259:1 active undef running +$ cat /sys/block/dm-3/ro +0 +$ cat /sys/block/nvme*n2/ro +1 +1 + +This is not a problem for SCSI disks, since the kernel will emit change +uevents containing the DISK_RO property when the disk is added to the +system. See the following thread for my initial attempt to fix this +issue at the kernel level: +https://lore.kernel.org/linux-block/Yib8GqCA5e3SQYty@infradead.org/T/#t + +Fix the issue by picking up the path ro state from sysfs in ev_add_path, +setting the mpp->force_readonly accordingly, and changing +dm_addmap_create to be aware of mpp->force_readonly. + +Signed-off-by: Uday Shankar +Reviewed-by: Benjamin Marzinski +Signed-off-by: Benjamin Marzinski +--- + libmultipath/devmapper.c | 2 +- + multipathd/main.c | 6 ++++++ + 2 files changed, 7 insertions(+), 1 deletion(-) + +diff --git a/libmultipath/devmapper.c b/libmultipath/devmapper.c +index 3f70e576..e3c3c119 100644 +--- a/libmultipath/devmapper.c ++++ b/libmultipath/devmapper.c +@@ -420,7 +420,7 @@ int dm_addmap_create (struct multipath *mpp, char * params) + int ro; + uint16_t udev_flags = build_udev_flags(mpp, 0); + +- for (ro = 0; ro <= 1; ro++) { ++ for (ro = mpp->force_readonly ? 1 : 0; ro <= 1; ro++) { + int err; + + if (dm_addmap(DM_DEVICE_CREATE, TGT_MPATH, mpp, params, ro, +diff --git a/multipathd/main.c b/multipathd/main.c +index f4b79882..eeded52b 100644 +--- a/multipathd/main.c ++++ b/multipathd/main.c +@@ -988,6 +988,7 @@ ev_add_path (struct path * pp, struct vectors * vecs, int need_do_map) + int retries = 3; + int start_waiter = 0; + int ret; ++ int ro; + + /* + * need path UID to go any further +@@ -1051,6 +1052,11 @@ rescan: + /* persistent reservation check*/ + mpath_pr_event_handle(pp); + ++ /* ro check - if new path is ro, force map to be ro as well */ ++ ro = sysfs_get_ro(pp); ++ if (ro == 1) ++ mpp->force_readonly = 1; ++ + if (!need_do_map) + return 0; + diff --git a/SPECS/device-mapper-multipath.spec b/SPECS/device-mapper-multipath.spec index 14efe40..fb1a43e 100644 --- a/SPECS/device-mapper-multipath.spec +++ b/SPECS/device-mapper-multipath.spec @@ -1,7 +1,7 @@ Summary: Tools to manage multipath devices using device-mapper Name: device-mapper-multipath Version: 0.8.4 -Release: 22%{?dist} +Release: 22%{?dist}.1 License: GPLv2 Group: System Environment/Base URL: http://christophe.varoqui.free.fr/ @@ -101,6 +101,7 @@ Patch00087: 0087-multipathd-avoid-unnecessary-path-read-only-reloads.patch Patch00088: 0088-libmultipath-make-helper-function-to-trigger-path-ue.patch Patch00089: 0089-multipathd-trigger-udev-change-on-path-addition.patch Patch00090: 0090-RH-add-support-to-mpathconf-for-setting-arbitrary-de.patch +Patch00091: 0091-multipath-tools-update-mpp-force_readonly-in-ev_add_.patch # runtime Requires: %{name}-libs = %{version}-%{release} @@ -302,6 +303,10 @@ fi %{_pkgconfdir}/libdmmp.pc %changelog +* Tue Jun 7 2022 Benjamin Marzinski 0.8.4-22.1 +- Add 0091-multipath-tools-update-mpp-force_readonly-in-ev_add_.patch +- Resolves: bz #2094472 + * Mon Feb 7 2022 Benjamin Marzinski 0.8.4-22 - Add 0090-RH-add-support-to-mpathconf-for-setting-arbitrary-de.patch - Resolves: bz #1981240